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Email BoardSonora Union High
Tuolumne County school performance
Sonora Union High is underperforming.
Reading and math results average to the 54th percentile among California school districts.
55.0% of students met California's reading standard, and it is trending up slightly.
Math is weaker: 25.9% of students met California's math standard, but it is slowly trending up.
| Current Reading Proficiency | 55.0% |
| Current Math Proficiency | 25.9% |
| District Reading Rank | 279 / 977 (72nd percentile) |
| District Math Rank | 618 / 977 (37th percentile) |
| Student / Teacher Ratio | 23:1 |
| Spend per Student | $20,852 |
| Schools in District | 3 |
| Student Enrollment | 989 |
| Low-Income Students | 413 (41.3%) |
| English Learners | 21 (2.1%) |
District Website
Great Schools
Niche
Ed-Data
CAASPPTest score trends
Reading rose 0.9 points from last year and rose 0.6 points over the full period. Math rose 3.7 points from last year and rose 4.8 points over the full period.
•Math +4.8 percentage pointsBoard Members
| name | elected | up for re-election |
|---|---|---|
Keith Arnett Board President [email protected] | 2022 | 2026This year! |
Josie Alomia-Brown Board Clerk [email protected] | N/A | 2026This year! |
Brandon Price Board Member [email protected] | N/A | 2028 |
Carla Bull Board Member [email protected] | N/A | 2028 |
Mike Holland Board Member [email protected] | 2022 | 2026This year! |
Expand for details on low-income and english learner performance
Reading Proficiency Scores
Comparison of low-income and English learner groups using district-level CAASPP proficiency data.
Low-Income vs Non-Low-Income
Low-income students trail other students by 15.5 points in reading. It narrowed over the period shown.
•
English Learners vs English Native
Results for both language groups are unavailable, so a current reading gap cannot be calculated.
Math Proficiency Scores
Comparison of low-income and English learner groups using district-level CAASPP proficiency data.
Low-Income vs Non-Low-Income
Low-income students trail other students by 7.5 points in math. It narrowed over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
District School Map
Schools in this district, color-coded by reading proficiency.
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Hover over a school marker to see details
Schools
Understanding this district
How does Sonora Union High rank in California?
Sonora Union High ranks No. 279 of 977 in reading and No. 618 of 977 in math for 2026. These proficiency rankings compare districts across all district types.
How much do results vary between Sonora Union High’s schools?
Among the 2 schools serving 9–12, proficiency ranges from 40.9% to 59.2% in reading and 8.7% to 31.0% in math.
See the district’s schoolsAre results improving across Sonora Union High’s schools?
Over 2024–2026, reading proficiency rose at 2 of 3 schools with results covering that full period; math rose at 2 of 3.
Compare school trendsHow do low-income students in Sonora Union High compare with other districts?
Low-income reading proficiency is 45.4%, compared with 45.3% at a typical California high district. In math, it is 21.2%, compared with 19.5%.
See student-group resultsWhich districts should I compare with Sonora Union High?
High districts in Tuolumne County. Peers have the closest enrollment sizes.
| District | Math | Reading |
|---|---|---|
| Sonora Union HighThis district | 25.9% | 55.0% |
| Summerville Union High | 29.7% | 67.7% |
How we compare low-income results
“Typical” is the median across 74 California high districts with 2026 results, a reported low-income population, and at least 20 low-income tested students in each subject. Each district counts once. This compares proficiency for low-income students, rather than the gap between income groups.
